Accumulate function with null check fails ----------------------------------------- Key: JBRULES-2980 URL: https://issues.jboss.org/browse/JBRULES-2980 Project: Drools Issue Type: Bug Security Level: Public (Everyone can see) Affects Versions: 5.2.0.M2 Environment: Windows Java 5 Reporter: Joe White Assignee: Mark Proctor When running the rule below the exception below occurs. Works on 5.0.1. Unit test attached **********************RULE********************* package accumsTest import java.util.Map; import java.util.ArrayList; dialect "mvel" rule "Accum test rule" salience 155 when $episode: Map() $commonVisits : ArrayList() from accumulate( Map( $selectedCv : this["KEY"] != null) from $episode, init(ArrayList selIns = new ArrayList();), action(selIns.addAll($selectedCv);), result(selIns) ) then System.out.println("HIT"); retract($episode); end *******************EXCEPTION******************** java.lang.NullPointerException at org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:58) at org.drools.reteoo.AccumulateNode.evaluateResultConstraints(AccumulateNode.java:598) at org.drools.reteoo.AccumulateNode.assertLeftTuple(AccumulateNode.java:181) at org.drools.reteoo.CompositeLeftTupleSinkAdapter.doPropagateAssertLeftTuple(CompositeLeftTupleSinkAdapter.java:222) at org.drools.reteoo.CompositeLeftTupleSinkAdapter.createAndPropagateAssertLeftTuple(CompositeLeftTupleSinkAdapter.java:108) at org.drools.reteoo.LeftInputAdapterNode.assertObject(LeftInputAdapterNode.java:141) at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:59) at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:185) at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:143) at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:332) at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:293) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:905) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:864) at org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:251) at com.recondotech.droolsTest.AccumTest.testUpdate(AccumTest.java:48) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:592) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28) at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:73) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:46) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41) at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28) at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31) at org.junit.runners.ParentRunner.run(ParentRunner.java:220) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira